Fan mounting



P 1929- R. N. BERRYMAN 1,726,881

FAN MOUNTING Filed Dec. 14, 1927 RALPH N 35/22 YMAN.

n I GfFoz-ncga/ Patented Sept. 3, 1929.

RALPH N., BERRYMAN, OF GRASS VALLEY, CALIFORNIA.

FAN, MOUNTING.

Application filed December 14, 1927. Serial No. 240,013.

The present invention relates to improvements in mounting means for a fan, and its principal object is to provide revolvable mounting means and to arrange the fan relative to the mounting means in such a manner that the rotation of the fan causes the mounting means and the fan to revolve so that the direction of the air current caused by the fan changes continually.

A further object of the invention is to provide a modified form of mounting means, usingthe same principle but arranged in such a manner that the fan oscillates back and forth instead of describing an entire circle, one form being preferably used where the fan is placed in the center of a room, and the other form where the fan is mounted in a corner.

The preferred forms of my invention are illustrated in the accompanying drawing, in which:

Figure 1 shows my fan and mounting means partly in front elevation and partly in section; 9

Figure 2 the same arrangement in side elevation;

Figure 3 a horizontal section taken along line 3-3 of Figure 2;

Figure i a horizontal section corresponding to that of Figure 3 of a modified form of my mounting;

Figure 5 a fragmentary section taken along line 55 of Figure 4.; and

Figure 6 a diagrammatic view showing the path of the fan and the air currents where the modified form of Figures 4 and 5 is used.

While I have shown only the preferred forms of the invention, I wish to have it understood that various changes or modifications may be made within the scope of the claims hereto attached without departing from the spirit of the invention.

In its preferred form, my invention comprises a standard 1 rising from a base 2, and a vertical shaft 3 extending centrally through the standard and guided by two bearings 4 and 6. At its upper end and above the standard 1, the shaft 3 terminates in a block 7 formed with a groove 8 in the upper face thereof. A plate 9 is made slidable in this groove, and is held therein by means of the dovetail arrangement shown at 11. The plate has a block 12 rising therefrom, and on the latter block is supported by means of straddling legs 13 and a bolt 15, the motor 16,

carrying on its shaft the fan 17. nut 14 allows the legs 13 of tightened upon the block 12.

Electrical current is guided to the motor windings by means of two conductors 18 connecting through the hollow shaft 3 with two insulated conducting rings 19 which are ongaged, respectively by the two brushes 21 held in position by springs 22.

The device so far described operates as follows: When the plate 9 is adjusted in the groove 8 in such a manner that the axis of the motor shaft is exactly in line with the axis of the shaft 3, the-fan will remain substantially stationary, and rotation of the fan will, not affect its position. If the plate 9 is moved in either direction, and the motor shaft is thus spaced from the extended axis of the shaft 3, the rotating movement of the fan will have a tendency to revolve the motor and the fan around the axis of the shaft 3, and this tendency becomes stronger the more the spacing of the motor shaft axis from the axis of the shaft 3 is increased. It will thus be seen that by proper proportioning of the spacing, revolving motion of the motor may be obtained, within a certain range, to a desired degree.

The form thus far described is particularly adapted where the fan is stationed in the center of a room. In cases where the fan is stationed in the corner of a room, a complete revolution of the motor around the axis of the shaft 3 is not desired, since the air current would be directed against the wall during part of the revolution. For this reason I provide the form shown in Figures i and 5 in which the motor oscillates in the manner graphically illustrated in Figure 6. While A wing the motor to be this path of travel for the motor may be accomplished in a number of different ways, I have shown only one, which I consider the preferred manner of carrying out this idea. In this form a ring 23 is placed on the standard 1 in such a manner as to provide an inclined upper face 24, and the block 26 is provided in its lower face with two rollers 27 adapted to ride on the inclined ring 24 while the block itself is pivoted to the upper end of the shaft 3 with freedom of tilting motion. The plate 9 rides in the groove 8 in the manner previously described, while a stop 28 is provided at either end of the groove.

In operation, while the fan is standing still, the block 26 will assume the position indicated in Figure 5, the plate 9 occupying the lowermost position in the groove 8 due to the weight of the motor. This point is graphically indicated in Figure 6 at 31. When the fan is set in motion, it will begin to revolve around the axis of the shaft 3, causing the block 26 to revolve on the inclined plane 24, and causing the motor to climb following the arrow 32 until it passes the center line and reaches a point say at 33, in which the incline of the groove 8 is sufficient to cause the plate 9 to slide downwardly along a' diametrical plane to the point 34. The rotating fan now drives the motor uphill again in the direction of the arrow 36 until it reaches a point- 37, whereupon the incline again is such that the motor slides backward to the point 38, whereupon it again climbs to the point In this manner the motor describes the path indicated in full lines in Figure 6, and directs the air current in the manner shown so that the currents never strike the immediate adjacent walls and at the same time are well distributed to cover the entire room.

I claim:

1. In a device of the character described, a revolvably mounted supporting element, a fan mounted relative thereto on a transverse axis spaced from the axis of the element for causing the fan to revolve on the latter axis when rendered active, and means for adjusting the spacing between the two axes.

In a device of the character described,

a revolvably mounted supporting element, a an mounted relative thereto on a transverse axis and means for adjusting the fan axis to intersect the former axis or to lie on either side thereof.

3. In a device of the character described, a revolvably mounted supporting element, a fan mounted relative thereto on a transverse axis positioned to one side or" the first axis whereby the fan is revolved when active, and means causing the fan to diametrically cross the first axis at a predetermined point whereby its revolving motion is reversed.

In a device of the character described, an inclined annular track, a base revolvable on said track having means for holding the same in concentric relation relative to the track, and a fan slidable onsaid base for diametrical movement across the axis of the track under the influence of gravity.

5. In a device of the character described, an inclined annular track, a base revolvable on said track, a revolvable post arranged centrally relative to the track and pivoted to the base for holding the latter to the track, and a fan slidable on the base for diametrical movement across the axis of the track under the influence of gravity.

6. In a device of the character described, an inclined annular track, a base revolvable on said track, a revolvable post arranged centrally relative to the track and pivoted to the base for holding the latter to the track, and a fan slidable on the base for diametrical movement across the axis of the track under the infiuence of gravity with means for limiting the movement of the fan.

RALPH N. BERRYMAN. 

